| Display | AMOLED touchscreen: 1.3-inch 416x416 (43 mm), 1.4-inch 454x454 (47 and 51 mm), up to twice as bright as fenix 8 (Garmin claim), sapphire lens | Largest display of any Apple Watch (LTPO3, wide-angle OLED, borders 24% thinner), 1Hz Always-On refresh |
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| Case | 43, 47 and 51 mm; fiber-reinforced polymer with titanium rear cover and titanium bezel; 61 g / 75 g / 91 g; 13.8 / 13.8 / 14.7 mm thick | Titanium (natural, black), 100% recycled titanium, 3D-printed |
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| Battery | Up to 10 / 16 / 29 days in smartwatch mode (43 / 47 / 51 mm); 51 mm: up to 54 hours GPS, 145 hours Max Battery GPS, up to 31 days Expedition mode (Garmin claims) | Up to 42 hours; up to 72 hours in Low Power Mode; 15 minutes of fast charging adds up to 12 hours |
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| Storage | 64GB for maps, music and data (about 7,000 songs per Garmin) | — |
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| Navigation | Multi-band GPS with SatIQ plus GLONASS, Galileo, QZSS and BeiDou; routable maps with perspective view, 50% more RAM than fenix 8 | — |
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| Training | Garmin Epic multi-activity stories, stamina zones and stamina curve, indoor rowing VO2 Max and power curve, rucking with up to 100 kg pack weight, training readiness and training status | — |
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| Health | Wrist-based heart rate, Pulse Ox, ECG app, Body Battery, sleep coach, skin temperature | — |
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| Features | Garmin Pay, music storage, LED flashlight, leakproof inductive buttons, speaker and microphone, Connect IQ | — |
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| Connectivity | Bluetooth, ANT+, Wi-Fi | 5G cellular, built-in two-way satellite communications, dual-frequency GPS |
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| Durability | 10 ATM, rated for diving to 40 m | — |
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| Straps | QuickFit 26 mm silicone band included, ComfortFit bands available | — |
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| OS | Garmin firmware; pairs with Android and iOS through the Garmin Connect app | watchOS 26 (requires iPhone 11 or later with iOS 26) |
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| Health Sensors | — | Optical heart sensor with hypertension notifications, sleep score, ECG, blood oxygen, sleep apnea notifications, water temperature |
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| Water Resistance | — | WR100; Oceanic+ dive computer app |
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